...{Codex Shredder}? This one little card ca a tidally do a lot, especially with the {Elixir if Immortality} plan to deck the opponent out. Shredder invalidates scry lands, bust it can also fetch a card from your grave back to hand at instant speed. Need a counter for that Blood Baron or Stormbreath? It'll only cost you 5 extra mana to pull one out of thin air, which is considerably less than it costing you the game.
What do you guys think? I'm gonna test shredder out this week, I think it's legit. I'm replacing the second {Quicken} with Shredder.